This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A104131 #7 Jun 03 2023 15:17:25
%S A104131 27,3125,285311670611,827240261886336764177,
%T A104131 17069174130723235958610643029059314756044734431,
%U A104131 1330877630632711998713399240963346255985889330161650994325137953641
%N A104131 a(n) = pip(n)^pip(n) where pip(n) is the n-th prime-indexed prime (see A006450).
%t A104131 #^#&/@Prime[Prime[Range[7]]] (* _Harvey P. Dale_, Jun 03 2023 *)
%o A104131 (PARI) piptopip(n) = { local(x,y); for(x=1,n, y=pip(x)^pip(x); print1(y","); ) } pip() = { return(prime(prime(n))) }
%K A104131 easy,nonn
%O A104131 1,1
%A A104131 _Cino Hilliard_, Mar 06 2005